Pipe coupling



March 28, 1933. w sE 1.903,,029

PIPE COUPLING Filed May 7, 1930 3 Sheets-Sheet 1 Mafch 28, 1933. -w. B. DAMSEL PIPE COUPLING Filed May 7, 1930 3 Sheets-Sheet 2 gwuwntop dxmm M% a 6 M W M W March 28, 1933. w DAMSEL 1,903,029

' PI'PE COUPLING Filed May '7, 1930 :s Sheets-Sheet 5 Patented 28, 1933 UNITED STATES PATENT caricaanagram, or new .Yonx, 1w. "1., ASSIGNOB no. wo'raumo' comm or amnion, on NEW YORK, N. 2., A CORPORATION or New JERSEY PIPE COUPLING Application med Kay 7, 1930. Serial 1%. 450,53tj

ed couplings are sometimes ruptured at a joint, and in such a case, my novel repair ring can be readily placed on the line at the point where the leak is located, and it will efiectively stop the leakage.

Another object is to furnish a repair ring of this character provided with novel packing means having lips which are pressed against the exterior of the pipe line by the pressure of the fluid flowing through the line.

Another object is to provide a sectional reair coupling, each section of which is combined with an endless packing member, these members being clamped against one another when the sections of the ring are secured to the pipe line.

A still further object is to furnish a structure of this type, so designed that one side of a packing member may be arranged closer to Y the axis of the pipe line than the other side of said member, in case it is necessary to apply the repair ring to portions of a pipe ling of varying diameters.

A further object is to furnish a repair ring having means to'allow for the escape of the pipe line fluid while the ring is being applied to the pipe line, such means to be closed by a stopper or plug after the ring has been installed so as to cut off the escape of the fluid.

With the foregoing objects outlined and with other objects in view which will appear as the description proceeds, the invention consists in the novel features hereinafter described in detail, illustrated in the accompanying drawings, and more particularly pointed out in the appended claims. a

Referring to the drawings,

. Fig; 1 is a side elevation of a joint portion of a pipe line, provided with one of my improved repair rings, the latter being shown in elevation, but partly .cut away to show a section.

Fig. 2 is an end view of the ring, partly in transverse vertical section.

F 1g. 3 is a radial sectional view of the ring on the line 33 of Fig. 2. Y

Fig. 4 is a side elevation of one of the pack ing elements. a

Fig. 5 is a front elevation of the same.

Figs. 6, 7 and 8 are longitudinal sectional views respectively, of rings and packing elements designed fornse with portlons of pipe lines having different diameters.

In the drawings, 10 designates a pipe line of the type employed to contain fluid under pressure. For the purpose of this disclosure, we will assume that the pipe line is made up ofpipe lengths having their'ends joined together by welded joints. For instance, as shown in Fig. 3, the end of one pipe 11 is enlarged to receive the end of an ad acent pipe 12, and these pipes are joined by welding, as indicated at 13. In case a leak should occur .in a joint of such a pipe line, I take care of the same'by means of my improved repair ring, which is indicated in its entirety at 14. This ring is made up of any suitable number of segmental sections 15, and each of these 'sec- 'tions may be a rugged metal casting, having a parti-cylindrica1 inner surface 16 which merges into transversely disposed side surfaces 17.

The portions of the section on which the surfaces 17 are located, are provided with segmental walls 18, the inneredges -19 of which are, rabbeted to receive a packing member 20, hereinafter described. 7

The walls 18 project outwardly as well as inwardly, and their outer portions are joined by reinforcing ribs 21 which extend in the direction of the axis of the ring.

The ends of each section have an outwardly extending radially disposed flange 22, into which the walls 18 merge, and each of these flanges is provided with a series of slots 23'- to receive the bolts 24 employed in securing the sections together. a

Each flange is rabbeted lengthwise thereof, as shown at 25, to receive one of the axially extending or connecting portions 26 of one of the packing members. Such a packing member is best shown in Figs. and 5, and 100 it may be made of flexible rubber or the like, and it consists of two perti-oircular side portions 27 and two axially extending portions 26, these portions forming an endless memher; the sides 2" 19 of a. ring section, and the axial portions 26 resting in the rahbets 25 when the parts are assembled. Eechoi the side portions oi the pitching member hosen inwardly extending p 28 which is designed to rest on the exterior of the pipe line, end to be pressed toward the letter by the pressure existing in the ennulsr chamber 29 oi the ring when the letter eppiied to the pipe ps to one end used for the repsir ring, the pi the pecking member will he errsnged 2% degrees,- os shown in. i ig. i, and consequent 1.3 when the sections of the ring sre assembled with the packing members therein, the

portions 26 oiithe sdjecent pecking mom here will shut egsinst one another, and form tight seeis when the bolts 2% are screwed up tight.

it will he understood that e repair ring oi this type may be attached to the pipe line without breaking any of the joints of the letter, and in'cese e pressure fluid should he escaping from the line while the ring is being installed, such fluid would enter the chamber .29. To sllow for the escepe of this fluid from the chem her, so that it will not interfere with the installing oi the ring one of the sec tions is provided with e circular boss 30 heving en opening therein communicsting with the etmosphere end sitter the perts been usseruhled on. the pipe line screw threaded plus: 31 is ettsched to the boss for the pn pose or closing the hole thus seslmg the rig. is rem their. time on, tiny pres sure fluid in the chsmher 22, will set on the lips 28 iorce the letter close contest with the surface of the pipe line,

in View of the feet that it be desirable to extend the repeir ring for dii zerent lengths elong the oi the pipe line this msy he eccomplished with my improved design, es

' illustrated in 6, 7 end 8.. For instance,

in Fig 6, one side 4.6 of the peching'rnemher may engege the portion 41 of the pipe which is of maximum diameter, end in such csse, the sections @2- of the ring? will he of relatively short length,

in Fig. 7, one side of s. pecking annulus is shown engaging a. portion 51 of a. pipe end which is of intermediate diameter, and in this case, the ring sections 52 are made somewhat longer, while'in' Fig. 8, the side of the packing'ring engages a. portion 61 ofthe pipe line which is of minimum diameter, and in this case, the ring sections 52 are made relatively long From this it will be understood 1 of which rest in the rebbets that while following the same principle of mechanical construction, the portions of the ring may be varied to take care of welded joints of various types.

In a. repair ring involving this principle, the packing members provide a plurality of speced continuous lips which entirely surround the pipe line. Furthermore, there is e gasket contact at each end of each section and this contact may be tightly meinteined by moons of the bolts 24. Moreover inner compression causes {e gasket to metal contact to take place olong a plurality of lines encircling the line;

While here isclosed whet i. new con sider to he embodiments oi the vention in such manner that the same may he reedily understood by those skilled in ert, I am ewsre hst chsnges may he made in the details disclosed, without departing from the spirit of the invention, as expressed in the clsims L -iiilhnt I claim end desire to secure by" Let, tors Potent is: f

1. A repeir ring for pipe lines or the like, comprising a sectional sleeve encircling the pipe line, the exterior of the pipe line and secured in positionby seid sections, each gasket having parti-circular side portions and portions connectin the side portions and extending szrielly of t e ring.

2. A. repair ring for pipe lines or the like, comprising at sectional sleeve encircling the pipe line, and endless gaskets bearing against exterior of the pipe line and secured in po sition by said sections, each gasket having perti-circuler 'side portions end portions connecting the side portions end extending sxieh 1y oi the ring, the connecting portions of each geslret being arranged at angles to one another.

3.. A. repair ring for pipe lines or the like, comprising a sectional sleeve encircling the pipe line, and endless gaskets beering against the exterior of the pipe line and secured in position by said sections, each gasket having perti-circuler side portions and portions connecting the side portions and extending axially oi the ring, e connecting portion of each gesket abutting against or connecting portion of on adjacent gasket l. A repair ring including s segments]. metallic section having outwardly extending flanges at its ends, said section having an endless rebbet extending along its inner edge,

specification.

WILLIAM B. DAMSEL.

and endless gaskets bearing against ill 

